Dynamica General Catalog 2012_9_25.indd - Scientifix

Halo DB-30UV / Visible Double Beam SpectrophotometerThe next generation Halo DB-30 double beam spectrophotometerboasts superlative performance characteristics for applicationsdemanding the utmost sensitivity by combining higher signalto noise ratios with minimal stray light. This warrants theHalo DB-30 suitable to many diverse fields and industries suchas pharmaceutical, food, sanitation, environment, biology,agriculture, geology, mineral, petrochemical, optical, life science,education, manufacturing and many others.Exceptionally Low Stray LightThe intricate but elegant and innovative optical pathway isengineered to deliver outstanding double beam performancecharacteristics, in particular stray light which achieves animpressive low 0.010%T. The outcome is an increase in thelinearity of absorbance characteristics for most samples thusincreasing the scope of analytical applications particularly athigher concentrations.Spectral FeaturesThe asymmetric monochromator with long focal length resultsin improved sensitivity. Furthermore, up to 6 slit widths areselectable and switchable (with the highest achievableresolution of 0.1 nm) thus allowing for the optimization ofdifferent applications.Other specifi cations include an impressive wavelength accuracyof ±0.3nm, noise level 0.0003Abs (500nm), wavelengthrepeatability of ±0.1nm for the accuracy and reproducibility ofanalytical data and an absorbance range of –4 to +5 Abs for theanalysis of high absorbance samples without the need for furtherdilution.High Scan Speeds and ResolutionSelect from 8 scan speeds starting at a high resolving 1nm/min.Coupled with the precise fine tuning of the photomultiplier tubes,a wavelength resolution of 0.1nm is maintained even at thefastest scan speed of 2,000 nm/min.Powerful UV Detective PC ControlThe Halo DB-30 is PC controlled using the UV Detective software(included with the instrument). Refer to page 3 for further detailson the UV Detective software. UV Detective can also operateoptional accessories such as the sample sipper and 6-cuvetteholder.The UV Detective software is powerful but user friendly usingWindows ® XP or Windows ® 7, as depicted in the process flowbelow> Select Function (e.g. Photometry)> Set Method Parameters> Auto-zero or Baseline> Sample test> Data processing> Report GenerationDual Lamp AdvantageBy virtue of the long life, halogen tungsten and deuteriumlamps, the Halo DB-30s wavelength range extends from 190nm– 900nm. Furthermore, the dual lamp system results in higheraccuracy than corresponding xenon lamps. Lamp switching isautomatic and selectable from a wavelength range of 325nmto 370nm.Validation FunctionsTo ensure optimum instrument performance, self-diagnosisincorporating a number of parameters and wavelengthcalibration are automatically initiated upon start-up. Furthermorethe Halo DB-30 and the UV Detective software is equippedwith a GLP/GMP feature for analyses requiring validation andauditing. Parameters such as wavelength accuracy, wavelengthreproducibility, bandpass, baseline fl atness, baseline stabilityand noise level can be all validated and the audit report printed.11